From 5441001d88177071b0f9edbb58044ca6a33adfe4 Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Sun, 9 Oct 2005 17:45:37 +0000
Subject: [PATCH] instead of drawing in immediate mode (in-between Draw()
calls) in HighlightEntity, just redraw the whole scene. It's slower, but on
modern machines it should be OK. This way we can deal with vertex arrays and
mesh highlights easily. I will revert this change if too many people
complain...
---
Common/Options.cpp | 10 +-
Common/VertexArray.cpp | 16 +---
Common/VertexArray.h | 1 -
Fltk/Callbacks.cpp | 202 ++++++++++++++++++++---------------------
Fltk/Opengl.cpp | 3 +-
Graphics/Geom.cpp | 48 ++++------
Graphics/Mesh.cpp | 18 ++--
TODO | 10 +-
8 files changed, 141 insertions(+), 167 deletions(-)
diff --git a/Common/Options.cpp b/Common/Options.cpp
index beedd45963..4c637ed443 100644
--- a/Common/Options.cpp
+++ b/Common/Options.cpp
@@ -1,4 +1,4 @@
-// $Id: Options.cpp,v 1.258 2005-09-22 15:20:38 remacle Exp $
+// $Id: Options.cpp,v 1.259 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -6778,8 +6778,10 @@ unsigned int opt_geometry_color_points_select(OPT_ARGS_COL)
unsigned int opt_geometry_color_lines_select(OPT_ARGS_COL)
{
- if(action & GMSH_SET)
+ if(action & GMSH_SET){
+ if(CTX.color.geom.line_sel != val) CTX.mesh.changed = 1;
CTX.color.geom.line_sel = val;
+ }
#if defined(HAVE_FLTK)
CCC(CTX.color.geom.line_sel, WID->geo_col[5]);
#endif
@@ -6788,8 +6790,10 @@ unsigned int opt_geometry_color_lines_select(OPT_ARGS_COL)
unsigned int opt_geometry_color_surfaces_select(OPT_ARGS_COL)
{
- if(action & GMSH_SET)
+ if(action & GMSH_SET){
+ if(CTX.color.geom.surface_sel != val) CTX.mesh.changed = 1;
CTX.color.geom.surface_sel = val;
+ }
#if defined(HAVE_FLTK)
CCC(CTX.color.geom.surface_sel, WID->geo_col[6]);
#endif
diff --git a/Common/VertexArray.cpp b/Common/VertexArray.cpp
index 79338e74b2..0649035608 100644
--- a/Common/VertexArray.cpp
+++ b/Common/VertexArray.cpp
@@ -1,4 +1,4 @@
-// $Id: VertexArray.cpp,v 1.7 2005-10-09 15:58:40 geuzaine Exp $
+// $Id: VertexArray.cpp,v 1.8 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -81,20 +81,6 @@ void VertexArray::add(float x, float y, float z, unsigned int col)
List_Add(colors, &a);
}
-void VertexArray::global_change_color(unsigned int col)
-{
- unsigned char r = UNPACK_RED(col);
- unsigned char g = UNPACK_GREEN(col);
- unsigned char b = UNPACK_BLUE(col);
- unsigned char a = UNPACK_ALPHA(col);
- for(int i = 0; i < List_Nbr(colors); i+= 4){
- List_Write(colors, i, &r);
- List_Write(colors, i, &g);
- List_Write(colors, i, &b);
- List_Write(colors, i, &a);
- }
-}
-
static double theeye[3];
int compareTriEye(const void *a, const void *b)
diff --git a/Common/VertexArray.h b/Common/VertexArray.h
index a77b7193b5..2d31f67ed3 100644
--- a/Common/VertexArray.h
+++ b/Common/VertexArray.h
@@ -32,7 +32,6 @@ class VertexArray{
float n0, float n1, float n2, unsigned int col);
void add(float x, float y, float z, unsigned int col);
void sort(double eye[3]);
- void global_change_color(unsigned int col);
};
#endif
diff --git a/Fltk/Callbacks.cpp b/Fltk/Callbacks.cpp
index b09f98fe28..62b43469f8 100644
--- a/Fltk/Callbacks.cpp
+++ b/Fltk/Callbacks.cpp
@@ -1,4 +1,4 @@
-// $Id: Callbacks.cpp,v 1.370 2005-09-22 15:20:38 remacle Exp $
+// $Id: Callbacks.cpp,v 1.371 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -96,6 +96,7 @@ int SelectContour(int type, int num, List_T * List)
break;
}
+ Draw();
return k;
}
@@ -833,119 +834,114 @@ void options_restore_defaults_cb(CALLBACK_ARGS)
void wizard_update_edges_cb(CALLBACK_ARGS)
{
- extern void BDS_To_Mesh(Mesh *m);
- if (THEM && THEM->bds && WID)
- {
- const double angle = WID->swiz_value[0]->value() * M_PI / 180;
- const int nb = (int) WID->swiz_value[3]->value();
- THEM->bds->classify (angle, nb);
- BDS_To_Mesh (THEM);
- Draw();
- }
+ extern void BDS_To_Mesh(Mesh *m);
+ if (THEM && THEM->bds && WID){
+ const double angle = WID->swiz_value[0]->value() * M_PI / 180;
+ const int nb = (int) WID->swiz_value[3]->value();
+ THEM->bds->classify (angle, nb);
+ BDS_To_Mesh (THEM);
+ Draw();
+ }
}
void wizard_update_more_edges_cb(CALLBACK_ARGS)
{
- Vertex *v;
- Curve *c;
- Surface *s;
- int n,p[100];
- extern void BDS_To_Mesh(Mesh *m);
- if (THEM && THEM->bds && WID)
- {
- const double angle = WID->swiz_value[2]->value() * M_PI / 180;
- const int nb_t = (int)(WID->swiz_value[3]->value() * M_PI / 180);
+ Vertex *v;
+ Curve *c;
+ Surface *s;
+ int n,p[100];
+ extern void BDS_To_Mesh(Mesh *m);
+
+ if (THEM && THEM->bds && WID) {
+ const double angle = WID->swiz_value[2]->value() * M_PI / 180;
+ const int nb_t = (int)(WID->swiz_value[3]->value() * M_PI / 180);
+ THEM->bds->classify (angle,nb_t);
+ BDS_To_Mesh (THEM);
+ Draw();
+ n=0;
+ while(1) {
+ Msg(STATUS3N, "Adding new Model Edges");
+ if(n == 0)
+ Msg(ONSCREEN, "Select Model Edges\n"
+ "[Press 'q' to abort or 'e' end]");
+ if(n == 1)
+ Msg(ONSCREEN, "Select Model Edge\n"
+ "[Press 'u' to undo last selection, 'q' to abort, 'e' end]");
+ char ib = SelectEntity(ENT_LINE, &v, &c, &s);
+ printf("ib = %c\n",ib);
+ if(ib == 'l') {
+ p[n++] = c->Num;
+ printf("line %d has been selected\n",c->Num);
+ }
+ if(ib == 'u') {
+ if(n > 0){
+ ZeroHighlightEntityNum(p[n-1], 0, 0);
+ Draw();
+ n--;
+ }
+ }
+ if(ib == 'q') {
+ ZeroHighlight(THEM);
+ Draw();
+ Msg(ONSCREEN, "");
+ Msg(STATUS3N, "Ready");
+ const double angle = WID->swiz_value[0]->value() * M_PI / 180;
THEM->bds->classify (angle,nb_t);
BDS_To_Mesh (THEM);
Draw();
- n=0;
- while(1) {
- Msg(STATUS3N, "Adding new Model Edges");
- if(n == 0)
- Msg(ONSCREEN, "Select Model Edges\n"
- "[Press 'q' to abort or 'e' end]");
- if(n == 1)
- Msg(ONSCREEN, "Select Model Edge\n"
- "[Press 'u' to undo last selection, 'q' to abort, 'e' end]");
- char ib = SelectEntity(ENT_LINE, &v, &c, &s);
- printf("ib = %c\n",ib);
- if(ib == 'l') {
- p[n++] = c->Num;
- printf("line %d has been selected\n",c->Num);
- }
- if(ib == 'u') {
- if(n > 0){
- ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
- n--;
- }
- }
- if(ib == 'q') {
- ZeroHighlight(THEM);
- Msg(ONSCREEN, "");
- Draw();
- Msg(STATUS3N, "Ready");
- const double angle = WID->swiz_value[0]->value() * M_PI / 180;
- THEM->bds->classify (angle,nb_t);
- BDS_To_Mesh (THEM);
- Draw();
- break;
- }
- if(ib == 'e') {
- for (int i=0;i<n;i++)
- {
- BDS_GeomEntity *g = THEM->bds->get_geom(p[i],1);
- std::list<BDS_Edge*>::iterator it = g->e.begin();
- std::list<BDS_Edge*>::iterator ite = g->e.end();
- while (it!=ite){
- BDS_Edge *e = (*it);
- e->status = 1;
- ++it;
- }
- }
-
- ZeroHighlight(THEM);
- Draw();
- n = 0;
- }
+ break;
+ }
+ if(ib == 'e') {
+ for (int i=0;i<n;i++) {
+ BDS_GeomEntity *g = THEM->bds->get_geom(p[i],1);
+ std::list<BDS_Edge*>::iterator it = g->e.begin();
+ std::list<BDS_Edge*>::iterator ite = g->e.end();
+ while (it!=ite){
+ BDS_Edge *e = (*it);
+ e->status = 1;
+ ++it;
+ }
}
+
+ ZeroHighlight(THEM);
+ Draw();
+ n = 0;
+ }
}
+ }
}
void wizard_update_tolerance_cb(CALLBACK_ARGS)
{
- extern void BDS_To_Mesh(Mesh *m);
-
- if (THEM && THEM->bds && WID)
- {
- const double tol = WID->swiz_value[1]->value();
- if (THEM->bds)delete THEM->bds;
- THEM->bds = new BDS_Mesh;
- printf("reading file %s\n",WID->surfmesh_filename.c_str());
- THEM->bds->read_stl ( WID->surfmesh_filename.c_str(), tol );
- BDS_To_Mesh (THEM);
- SetBoundingBox();
- char a[25];
- sprintf(a,"%d",THEM->bds->points.size());
- WID->swiz_output[0]->value(a);
- Draw();
- }
+ extern void BDS_To_Mesh(Mesh *m);
+
+ if (THEM && THEM->bds && WID) {
+ const double tol = WID->swiz_value[1]->value();
+ if (THEM->bds)delete THEM->bds;
+ THEM->bds = new BDS_Mesh;
+ printf("reading file %s\n",WID->surfmesh_filename.c_str());
+ THEM->bds->read_stl ( WID->surfmesh_filename.c_str(), tol );
+ BDS_To_Mesh (THEM);
+ SetBoundingBox();
+ char a[25];
+ sprintf(a,"%d",THEM->bds->points.size());
+ WID->swiz_output[0]->value(a);
+ Draw();
+ }
}
void wizard_update_next_cb(CALLBACK_ARGS)
{
- if (WID)
- {
- WID->swiz_wiz->next();
- }
+ if (WID) {
+ WID->swiz_wiz->next();
+ }
}
void wizard_update_prev_cb(CALLBACK_ARGS)
{
- if (WID)
- {
- WID->swiz_wiz->prev();
- }
+ if (WID) {
+ WID->swiz_wiz->prev();
+ }
}
void options_ok_cb(CALLBACK_ARGS)
@@ -1947,7 +1943,7 @@ static void _new_multiline(int type)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -1994,7 +1990,7 @@ void geometry_elementary_add_new_line_cb(CALLBACK_ARGS)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -2055,7 +2051,7 @@ void geometry_elementary_add_new_circle_cb(CALLBACK_ARGS)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -2065,7 +2061,7 @@ void geometry_elementary_add_new_circle_cb(CALLBACK_ARGS)
break;
}
if(n == 3) {
- add_circ(p[0], p[1], p[2], CTX.filename); /* begin, center, end */
+ add_circ(p[0], p[1], p[2], CTX.filename); // begin, center, end
ZeroHighlight(THEM);
Draw();
n = 0;
@@ -2109,7 +2105,7 @@ void geometry_elementary_add_new_ellipse_cb(CALLBACK_ARGS)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -2710,7 +2706,7 @@ static void _add_physical(char *what)
ZeroHighlightEntityNum((type == ENT_POINT) ? num : 0,
(type == ENT_LINE) ? num : 0,
(type == ENT_SURFACE) ? num : 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
List_Pop(List1);
}
}
@@ -2880,7 +2876,7 @@ void mesh_define_length_cb(CALLBACK_ARGS)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -2927,7 +2923,7 @@ void mesh_define_recombine_cb(CALLBACK_ARGS)
if(ib == 'u') {
if(n > 0){
ZeroHighlightEntityNum(0, 0, p[n-1]);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -3000,7 +2996,7 @@ static void _add_transfinite_elliptic(int type, int dim)
if(dim == 1) {
if(n > 0){
ZeroHighlightEntityNum(0, p[n-1], 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
@@ -3032,7 +3028,7 @@ static void _add_transfinite_elliptic(int type, int dim)
if(ib == 'u') {
if(n > ((dim == 2) ? 1 : 0)){
ZeroHighlightEntityNum(p[n-1], 0, 0);
- Draw(); // inefficient, but hard to do otherwise
+ Draw();
n--;
}
}
diff --git a/Fltk/Opengl.cpp b/Fltk/Opengl.cpp
index 188da306ce..e1a75d7ef7 100644
--- a/Fltk/Opengl.cpp
+++ b/Fltk/Opengl.cpp
@@ -1,4 +1,4 @@
-// $Id: Opengl.cpp,v 1.53 2005-10-09 15:58:41 geuzaine Exp $
+// $Id: Opengl.cpp,v 1.54 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -244,6 +244,7 @@ char SelectEntity(int type, Vertex ** v, Curve ** c, Surface ** s)
Process_SelectionBuffer(Fl::event_x(), Fl::event_y(), &numhits, hits);
if(Filter_SelectionBuffer(WID->selection, numhits, hits, v, c, s, &M)){
HighlightEntity(*v, *c, *s, 1);
+ Draw();
WID->selection = ENT_NONE;
return 'l';
}
diff --git a/Graphics/Geom.cpp b/Graphics/Geom.cpp
index 4e77769268..ddad24f67f 100644
--- a/Graphics/Geom.cpp
+++ b/Graphics/Geom.cpp
@@ -1,4 +1,4 @@
-// $Id: Geom.cpp,v 1.91 2005-10-09 15:58:41 geuzaine Exp $
+// $Id: Geom.cpp,v 1.92 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -123,7 +123,7 @@ void Draw_Curve(void *a, void *b)
glPushName(c->Num);
}
- if(c->ipar[3]) {
+ if(c->ipar[3] > 0) {
glLineWidth(CTX.geom.line_sel_width);
gl2psLineWidth(CTX.geom.line_sel_width * CTX.print.eps_line_width_factor);
glColor4ubv((GLubyte *) & CTX.color.geom.line_sel);
@@ -170,7 +170,7 @@ void Draw_Curve(void *a, void *b)
x[1] = e->p2->X;
y[1] = e->p2->Y;
z[1] = e->p2->Z;
- Draw_Cylinder(c->ipar[3] ? CTX.geom.line_sel_width : CTX.geom.line_width,
+ Draw_Cylinder(c->ipar[3] > 0 ? CTX.geom.line_sel_width : CTX.geom.line_width,
x, y, z, CTX.geom.light);
}
++it;
@@ -190,7 +190,7 @@ void Draw_Curve(void *a, void *b)
x[1] = dv.Pos.X;
y[1] = dv.Pos.Y;
z[1] = dv.Pos.Z;
- Draw_Cylinder(c->ipar[3] ? CTX.geom.line_sel_width : CTX.geom.line_width,
+ Draw_Cylinder(c->ipar[3] > 0 ? CTX.geom.line_sel_width : CTX.geom.line_width,
x, y, z, CTX.geom.light);
}
if(CTX.geom.line_type == 2) {
@@ -622,7 +622,7 @@ void Draw_Surface(void *a, void *b)
glPushName(s->Num);
}
- if(s->ipar[4]) {
+ if(s->ipar[4] > 0) {
glLineWidth(CTX.geom.line_sel_width / 2.);
gl2psLineWidth(CTX.geom.line_sel_width / 2. *
CTX.print.eps_line_width_factor);
@@ -682,16 +682,19 @@ void HighlightEntity(Vertex * v, Curve * c, Surface * s, int permanent)
Curve *cc;
char Message[256], temp[256];
- if(permanent){
- // we want to draw incrementally (in-between to "Draw()" calls!):
- // we need to make sure that the opengl context is set correctly
- SetOpenglContext();
- }
+ // Note: in Gmsh < 1.61, we used to draw permanent highlights (the
+ // "red" selected lines, etc.) using incrmental drawing, i.e., by
+ // drawing "over" the current picture in-between Draw() calls. This
+ // was fine for simple overlays on points and lines (that we could
+ // draw with a slightly larger width so that they would cover the
+ // old ones), but it does not work well when drawing surfaces,
+ // post-pro views, etc. And since real cross-platform overlays are
+ // unmanageable, the best solution is actually to redraw the whole
+ // scene. This is the approach we follow now.
if(v) {
if(permanent){
v->Frozen = 1;
- Draw_Geo_Point(&v,NULL);
}
else{
Msg(STATUS1N, "Point %d {%.5g,%.5g,%.5g} (%.5g)", v->Num, v->Pos.X,
@@ -700,10 +703,7 @@ void HighlightEntity(Vertex * v, Curve * c, Surface * s, int permanent)
}
else if(c) {
if(permanent){
- c->ipar[3] = 1;
- Draw_Curve(&c,NULL);
- CTX.mesh.changed = 1; // a bit brutal, but the simplest solution
- Draw_Mesh_Curve(&c,NULL);
+ c->ipar[3] = 2;
}
else{
if(c->beg && c->end)
@@ -714,10 +714,7 @@ void HighlightEntity(Vertex * v, Curve * c, Surface * s, int permanent)
}
else if(s) {
if(permanent){
- s->ipar[4] = 1;
- Draw_Surface(&s,NULL);
- CTX.mesh.changed = 1; // a bit brutal, but the simplest solution
- Draw_Mesh_Surface(&s,NULL);
+ s->ipar[4] = 2;
}
else{
int nbg = List_Nbr(s->Generatrices);
@@ -755,6 +752,7 @@ void HighlightEntity(Vertex * v, Curve * c, Surface * s, int permanent)
if(!permanent)
Msg(STATUS1N, " ");
}
+
}
void HighlightEntityNum(int v, int c, int s, int permanent)
@@ -785,21 +783,13 @@ void ZeroHighlightPoint(void *a, void *b)
void ZeroHighlightCurve(void *a, void *b)
{
Curve *c = *(Curve **) a;
- c->ipar[3] = 0;
- // the curve colors might have changed (and in complicated ways,
- // e.g., if we color by partition, so we cannot use the
- // global_change_color trick)
- CTX.mesh.changed = 1;
+ c->ipar[3] = -2;
}
void ZeroHighlightSurface(void *a, void *b)
{
Surface *s = *(Surface **) a;
- s->ipar[4] = 0;
- // the surface colors might have changed (and in complicated ways,
- // e.g., if we color by partition, so we cannot use the
- // global_change_color trick)
- CTX.mesh.changed = 1;
+ s->ipar[4] = -2;
}
void ZeroHighlight(Mesh * m)
diff --git a/Graphics/Mesh.cpp b/Graphics/Mesh.cpp
index f9b3035d1d..205c8ee3b7 100644
--- a/Graphics/Mesh.cpp
+++ b/Graphics/Mesh.cpp
@@ -1,4 +1,4 @@
-// $Id: Mesh.cpp,v 1.138 2005-10-09 15:58:41 geuzaine Exp $
+// $Id: Mesh.cpp,v 1.139 2005-10-09 17:45:37 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -425,7 +425,10 @@ void Draw_Mesh_Surface(void *a, void *b)
}
if(CTX.mesh.vertex_arrays){
- if(CTX.mesh.changed){
+ if(CTX.mesh.changed || s->ipar[4] == 2 || s->ipar[4] == -2){
+ if(s->ipar[4] == 2) s->ipar[4] = 1;
+ if(s->ipar[4] == -2) s->ipar[4] = -1;
+
Msg(DEBUG, "regenerate surface mesh vertex arrays");
thePhysical = getFirstPhysical(MSH_PHYSICAL_SURFACE, s->Num);
// triangles
@@ -514,7 +517,10 @@ void Draw_Mesh_Curve(void *a, void *b)
theColor = c->Color;
if(CTX.mesh.vertex_arrays){
- if(CTX.mesh.changed){
+ if(CTX.mesh.changed || c->ipar[3] == 2 || c->ipar[3] == -2){
+ if(c->ipar[3] == 2) c->ipar[3] = 1;
+ if(c->ipar[3] == -2) c->ipar[3] = -1;
+
Msg(DEBUG, "regenerate curve mesh vertex array");
thePhysical = getFirstPhysical(MSH_PHYSICAL_LINE, c->Num);
if(c->LinVertexArray) delete c->LinVertexArray;
@@ -644,7 +650,7 @@ void Draw_Mesh_Line(void *a, void *b)
}
unsigned int col;
- if(theCurve && theCurve->ipar[3])
+ if(theCurve && theCurve->ipar[3] > 0)
col = CTX.color.geom.line_sel;
else if(theColor.type)
col = theColor.mesh;
@@ -922,7 +928,7 @@ void Draw_Mesh_Triangle(void *a, void *b)
return;
unsigned int col;
- if(theSurface && theSurface->ipar[4])
+ if(theSurface && theSurface->ipar[4] > 0)
col = CTX.color.geom.surface_sel;
else if(theColor.type)
col = theColor.mesh;
@@ -1102,7 +1108,7 @@ void Draw_Mesh_Quadrangle(void *a, void *b)
return;
unsigned int col;
- if(theSurface && theSurface->ipar[4])
+ if(theSurface && theSurface->ipar[4] > 0)
col = CTX.color.geom.surface_sel;
else if(theColor.type)
col = theColor.mesh;
diff --git a/TODO b/TODO
index 5836d23c43..8a60e5e31e 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,4 @@
-$Id: TODO,v 1.101 2005-10-09 15:58:40 geuzaine Exp $
+$Id: TODO,v 1.102 2005-10-09 17:45:37 geuzaine Exp $
********************************************************************
@@ -7,14 +7,6 @@ remove entities from a selection by clicking on them
********************************************************************
-We should fine-grain CTX.mesh.changed so that we can keep track of
-changes surface by surface, volume by volume, etc. This would speed up
-mesh selection quite a bit on large models (since we would only have
-to regenerate the vertex array for the surface/volume that has
-changed, and not everything)
-
-********************************************************************
-
On Windows without Cygwin:
- rewrite solver interface (GmshServer and GmshClient)
- Functions in parser don't seem to work
--
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